Nonstationary current-driven dynamics of vortex domain walls in films with in-plane anisotropy
| Autor: | Mikhail N. Dubovik, L. G. Korzunin, Boris N. Filippov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Physics Condensed matter physics Dynamics (mechanics) Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Vortex Nonlinear system Domain wall (magnetism) Transformation (function) 0103 physical sciences Domain (ring theory) 010306 general physics Anisotropy Current density |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 424:238-244 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2016.10.062 |
| Popis: | Micromagnetic simulation of a current-driven vortex domain wall motion in a film with in-plane anisotropy was carried out. The current density values j > j c were considered corresponding to the nonstationary motion, with the domain wall structure dynamic transformation occurred. A nonlinear dependence of the j c value on the film thickness was obtained. The nonstationary motion regime existence restricted the possibility to increase the domain wall velocity by increasing j and decreasing the damping parameter. |
| Databáze: | OpenAIRE |
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